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Finding the Fourth Proportional to 14,341.80, 19,787.22 and 8,372.10

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Solution

The fourth proportional to 14,341.80, 19,787.22 and 8,372.10 is: 11,550.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,341.80 : 19,787.22 = 8,372.10 : x
  2. Step 2: Convert to fraction form
    14,341.80/19,787.22 = 8,372.10/x
  3. Step 3: Cross multiply
    14,341.80x = 19,787.22 × 8,372.10
  4. Step 4: Simplify right side
    14,341.80x = 165,660,584.56
  5. Step 5: Solve for x
    x = 165,660,584.56/14,341.80
  6. Step 6: Final answer
    x = 11,550.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.